By Billy G. · Founder & Lead EditorVerified May 21 by Billy G.
Allbirds Tree Runners
Allbirds Tree Runnersvs
On Cloudmonster 2
On Cloudmonster 2
Worth-It Score: 75/100WAITOn Cloudmonster 2 scores well, but current pricing sits above our fair-price band. Wait for a price drop before pulling the trigger.
✓VerifiedConfidence: 80%
Verdict: The On Cloudmonster 2 outperforms the Allbirds Tree Runners in cushioning depth and long-run stability according to Runner's World and Outside magazine comparisons. Allbirds excels in lightweight feel and eco-friendly construction but trails in impact absorption for distances beyond 5 miles. On takes the win for dedicated runners while Allbirds suits lighter daily use.
How we scored itSpec verificationOwner sentimentLive pricing (4h refresh)Editorial reviewOur methodology →
Limited cushioning for long-distance runs over 5 miles
Less responsive underfoot compared to maximalist options
On Cloudmonster 2
What works
Exceptional plush cushioning absorbs impact on long runs
Stable platform with wide base for overpronators
Durable rubber outsole with good traction
What doesn't
Heavier build reduces agility for speedwork
Higher price point limits accessibility for casual users
Bottom line
Our pick: On Cloudmonster 2. It edges out the alternative on exceptional plush cushioning absorbs impact on long runs. That said, Allbirds Tree Runners still wins on sustainable eucalyptus upper reduces environmental impact — consider it if that single trade matters most for your use.